Motor-vehicle lamp



Oct. 16, 1928. 1,687,877

Y A. MOORHOUSE MOTOR VEHICLE LAMP Filed Sept. 2?, 1926 v fl 5. l

17 15 10 4a 1a zz 49 a5 11 as Z! J] 19 5: 50 5e 4 1a 47 a5 a? I Z6 zz 0 a9 55 (5'4 5 9 42/56 5745 54 I gmnntov fiLrnzn Kauai-muss Patented 061. 1 6, 1928.

ALFRED MooR oUsE, or ns'i nox i, MI CII iIGAN, Assmno; 5130 new {I noi'oi 611i coMPANY, or DETROIT, MIcnIeAm-A CORPORATION OF MiCHIGAN.

Application fil ed September 27 1926'. Sei'ff 1T617,2

This invention relates to motor vehicles and particularly to lamp structure 01'" instm; 'm'enthoard; lamp structure for motor vehicles. v

5 An object of the invention is to provide a lamp for the instrument board of a motor =vehic'le designed to" avoid a separate and independent switch for controlling the operation thereof. 1

vicle a lamp for the instrument board of a motor Vehicle which may be rotated to'pro j'ect light at any radius therefrom; a Another object of the invention is to provicle a lamp for the instrument boa-rd of a motor vehicle having a unique means Whereby itmay be easily ancl'q'uickly mounted and when once mounted and adjusted Will 'be maintained in a rigid position.

Yet another object of the invention is to provide a lamp for the instrument board, of'

a motor vehiclehaving its various parts de signecl to facilitate a rapid clisassembly thereof for the purpose of inspection, refplaceinents or repairs.

A further oh'ect of the invention is to provide a lamp for the instrument board of a motor vehicle having all the appearances of a finished knob, which when pulled outwardly closes a circuit to'light a lamp mountecl therein,theknob'heing free to'revolv'e' to project light atdifierent angles and susceptible of being rotated and of heing pushed inwardly to open the circuit and extinguish thelig'at at any position'it may occupy upon being revolved; V V

Still a further object of the invention is to provide a lamp for theinstriiment' board of a motor vehiclewliich'is highly efficient in operation and yet of markedsimplicity'? as a whole and in respect to each of its component parts; sothatits manufacture is eco-;

nomicallv facilitate'tl hoth as regards" to the p arts a ntl their assembly.

ing' description l taken 1 in" connection with. the drawings, which f'orma part ofthis' speci'fi cation; ancl inwhi'ch:

Fig. 1 isa'side elevation of the'lamp'with the sleeve or collar for mounting the same removed. J

Fig. 2 is' a longitudinal sectional View of the lamp moiintecl in the instriiment-lioard of i a" motor vehicle, illustrating-the position Another object of the invention is to p Other objects will appear from thefoll'ow ofthveri des-pmewiies me amp ci'rcni't is opened, 1161 Fig; is a rear end elevation inuseiacieg the monntin jmesms.

l Referring niimeral'sto thedra vvi'n'gs', 10 re resents an'insti'ufnent boaid of a mbtoi' vehicle which may be of any desirefi e or" style. Manatee-111w aperture I1 instrument boardis a socket or -c lfnd ii ea l section 1 2 havingat one e'nd thereo' ,amrned flange- I3-adapted to bear against the front Of the board s enna the aperture 11. from, orofiherwise formed ,fipo'fi the sbbk t 12 M nam to-the flan e 13 is a mmay of legs 111mm al re' extend radially. v, A sleeve- Orbfrllflf 151s fit ted' snugly upon the socket 12. The collar1'5'is'p1dvid'edWith sp ced apart-end b nt-1e Punched a pln'rality'ofnothes lflarranged' to register with and tos'li'pjover the lugs 14: This collar is alsop'ro'videfl withepmmrity of set'serews 17. The socket 12 is emcee in-theapertnr'e 11; with-its flange 13 bearin 11 inSt-tfh'front v 1 he collar-15 i's then slipped" over thesocket: and the T ngs 0f the instrument board.

14' thereon; In this posi'fionthecollaflvill hoard. The" collar is then given a slight turn and upon tightening the [set straws 17, the

socket 12 will be secured in a fixed position'.

The 0111111 end of the's'ofc'ket- 12 ha'sjin its outer circumference a pres'sedgrob e 18 disk 2011121) be otherwiseniounted" as" for iii'starice bypunchjng higs fibm the socket tb engage'the re pectivesidesthereof;

The disk 20 has a c t'ra l a ex-111622 111 which i's' mounted aten'ninaI;-' The-terminal compfii'sesm? shaft 23 f rmed with a flaflg'fibearingragaihst the exteribr face or side, ofthe di'k QOw'ith wwdsher 'interposed a'iikT-a threaded bossflfi. Threadednpdn' the boss 25 is a tap 26 for attaching the conductor froIfi a sUurcej 0-feieetriduleifetgy, not shown.

The shaft 23 1mm a centralbore?27 a'ndi s tunnefi to" fofm it flange 28*tofclamp 'betvl'een itself and theinter'ior me 'orfsideiof the disk "20aspring'contactor 29. The? con'tactor 29 isfiofnfedewith twd me ao-bm to'extrlii 'parallelwitll respect to ea chwthermid late? ally within the barrel 12. The arms 30 are provided with corresponding and oppositely disposed V-shaped portions 31 adjacent to their free ends, the object of which will be hereinafter explained.

Mountedtelescopically in the socket'12, is

a cylindrical section or hollow plug 32 having formed upon one end thereof a knob 33 by which it is manipulated, and adjacent to the knob is a cut out portion 34, the object of which will hereinafter appear. Upon the outertircumference of the cylinder or plug near itsother end, which is internallythreaded as indicated at 35, is a broad circular groove 36 adapted to register with aslot 37 in the ,wall of the socketlQ. Riveted or otherwise secured to the socket is a spring tongue 38. The tongue 38 is arched as indicated at 39 and normally rests uponjgai boss 40 swedged from the socket adjacent to the slot 37. The free end of the tongue is bentas at 41 to proj ect through the slot 37 and engage the groove 36. I In order to remove the rplugifrom the socket the arched portion 39 of the tongue 38 is pressed. This action raises the end 41 from engagement with the groove 36, leaving the plug free to bewvithdrawn. I

V A short section of the plug comprising a cylindrical section 4:2 of the same diameter as the plug or cylinder 32, is provided. upon one end with a contracted neck portion 43 externally threaded to engage the threaded portion in the end of the plug cylinder 32.

The neck portion 43 has a'fiange 44 supporting a sleeve 45, The sleeve 45 is provided with a standard bayonet socket 46 for the reception of a lamp 47. The-lamp 47 is positioned in'the plugor cylinder 32 to place its bulb 48 opposite the cut, out portion 34 through which light from the lamp is projected. v

(Mounted in the other endof the section 42, is an insulating disk 49 having a central bore in which is mounted a contactor comprising a stud 50. The stud 50 is formed with a head 51 having a circular V-sh'ap'ed groove 52 adapted for engagementwith the V-shaped portion 31 on the contact arms 30. Mounted upon the stud 50 intermediate the head 51 and the insulating disk 49 is a sleeve 53 of insulation having inits circumference a groove 54 similar to that in the head and likewise adapted to co-operate with the portions 31 of the contact arms. The stud 50 projects through the disk 49 and is upset upon a washer 55 having formed integral therewith a spring 56 which contacts with the base contact ofthe lamp. 1

It is to beobserved that the sections 32 and the shortsection 42 are threaded together in such a manner that they may beeasily'and quickly separated for inspection or for purposes of replacement and repairs. When these two sections have been assembled with their parts properly adjusted, the unit so as- By pulling outwardly upon the the groove 52upon the contactor head 51 thus closing the circuit, the current passing throughthestud 50 and the contact spring 55 to the base contact of thelamp. By this arrangement a unique switch mechanism is provided. The outward and inward move ment of the plug is limited by the width of the groove 36 upon the circumference of the section 32. hen the light is on it may be revolved by the knob 34 to project light at any angle parallelto the instrument board. is accomplished by the unique mounting of the plug 32 in the socket l2 and the arrangement of the electrical connections or switch mechanism which permits the revolving of the sections 32 and 42 as one complete unit or unitary plug. g

WVhile I have shown and described the pre= ferred embodiment of my invention, I wish it to be understood that I do not confine myself to the precise details of construction herein set forth, by way of illustration, as it is apparent that many changes and variations may be made therein, by those skilled in the art, without departing from the spirit of the invention, or exceeding the scope of the appended claims.

Having thus described the various features of my invention, what I claim as new ant desire to secure by Letters Patent is: "'1. A lamp structure comprising a socket member, a'plug, member mounted to rotate and to move longitudinally in thesocket member, interlocking means comprising a tongue extending throughthesocket member and engaging theplug member permitting rotary This lUU

and longitudinal movement of the plug 7 member, a. lamp in the plug member, a terminal for the lamp and a contact means for the lamp actuated by the longitudinal movement of the plug and permitting rotation thereof;

knob is pulled outwardly and opened when sulated and means in the socket for alternately engaging the grooves upon longitudinal movement of the plug.

l. A lamp structure comprising a socket, a hollow plug mounted in the socket, a lamp mounted in one end of the hollow plug, a con tactor mounted in the other end of the hollow plug in circuit with the lamp, a plurality of annular grooves in the contactor one of which is insulated and a forked contact in the base of the socket adapted to engage the grooves in the contactor.

5. A lamp structure comprising a socket, a

hollow cylindrical two part plug, one of the parts having a knob on one end and an aperture inoits circumference, the other part hav-i ing a lamp support on one end and aswitch member in the other end, a spring contact between the switch member and the lamp support, the switch member having a plurality of grooves, and a spring fork in the base of the socket for engaging the grooves.

6. A lamp structure comprising a socket, a

hollow cylindrical two part plug threaded to gether, a lamp mounted in one part and a contactor in circuit with the lamp, the other part having a knob upon one end and an aperture in its wall adapted to register with the lamp and means in the socket for contacting with I ward longitudinal movement only of the plug the contactor on the plug. 7

7 A lamp structure comprising a socket having a flange, a plurality of lugs adjacent to the flange and an expandible means includ ing a collar adapted to be pressed into engage ment with the lugs between the flange andthe lugs. v p

8. A lamp structurecomprising a tubular member having a flange, a pluralityof lugs struck from the tubular member in spaced relation to the flange and an mman dible means including a collar adapted to be pressed into engagement with the lugs mounted between the flange and the lugs;

9. A-lamp structure comprising a tubular member having a flange, a plurality of lugs struckfrom the wall of the tubular member 7 in spaced relation to the flange, and'expandible means including a notched collar on the tubularmember between the flange and the lugs.

10. A member having a flange, a plurality of lugs struck from the tubular member in circumferential alinement in spacedrelation to the flange, a demountable collar upon the tubular member and means mounted in the collar for creating and maintaining a pressure between the flange andthe lugs.

"11. 'A lamp structure comprising a socket member having a contact therein, a plug member adapted for longitudinal and rotary movement in the socket member, the plug member carrying a lamp and a contact, said contacts adapted for engagement and disengagement upon longitudinal movement only of the plug member in thesocket member.

lamp structure comprising a tubular 12. A lamp structure comprising a socket member in the socket member and for disengagement upon inward longitudinal movement of the plug member. I v

vIn testimony whereof I aflix my signature.

"ALFRED MooRHoUsE; 

